Joshua Oppenheimer's documentary  is the one of the most surreal and bizarre film experiences   I have ever witnessed.
If you want to easily depict the picture and understand what the psychopath is watch this movie.

One of the most audacious documentaries ever made ,possibly the best documentary ever made.
Best film of 2013.

A documentary about the aftermath of the 1960s mass killings in Indonesia by Suharto's coup-installed military regime and death squads, The Act of Killing spirals into horrifying surrealism from a seemingly simple starting point: in this case, interviewing some of the paramilitary leaders and self-described "gangsters" employed to eradicate anyone deemed a "communist"-- in practice almost anyone not loyal to the new regime. The surprise is that these men are eager to tell their tales, often indulging in graphic detail to describe, for example, the best means of murdering captives without spilling much blood (with a wire around the neck). They even enjoy reenacting their state-sanctioned murders on camera, at director Joshua Oppenheimer's invitation, adopting the lurid styles of the Hollywood crime films that influenced them back in the day. We see the rotund, disheveled Herman Koto and the slender, debonair Anwar Congo-- the latter responsible for more than 1,000 murders, many carried out with that wire-strangling technique-- searching neighbourhoods they once attacked for locals to play parts in a reenactment.


"It's like wandering into Germany 40 years after World War II and finding the Nazis still in power," says Oppenheimer. The men brag and laugh about their savagery. "If they're pretty, I'd rape them all," one of the aged gangsters tells it. "Fuck 'em! Fuck the shit out of everyone I meet. Especially if you get one who's only 14-years-old. Delicious! I'd say, it's gonna be hell for you but heaven on earth for me." And they still practice their malice, such as when Oppenheimer captures them shaking down local merchants.

"It's powerful, surreal, frightening," says Herzog, an executive producer of the film along with Morris. "The most surreal moments you've ever seen in your life. It's something completely and utterly unprecedented. It's not gonna leave you until the end of your days.
Werner Herzog has seen some crazy stuff: Nicaraguan child soldiers, Texas death row inmates, French cave paintings dating back some 30 millennia, active Antarctic volcanoes, the haunted Italian castle of a 16th-century composer who killed his wife and her lover, a steamship hauled over a Peruvian mountain by thousands of Amazonian Indians, a man who lived among and was ultimately devoured by Alaskan grizzly bears, another man who boiled and ate his own shoe. (That man being Herzog himself, after losing a bet to fellow filmmaker Errol Morris.) But the 70-year-old Oscar nominee and recent recipient of the German Film Academy's lifetime achievement award has never seen anything like Joshua Oppenheimer's new, eight-years-in-the-making documentary The Act of Killing.

Joshua Oppenheimer’s The Look of Silence is a stunning companion piece, or possibly narrative development, to  The Act Of Killing.